Armor-tired wheel.



G. E. DULIN.

ARMOR TIRED WHEEL.

APPLICATION FILED OUT. 2a, 1908.

937, 146. Patented Oct. 19, 1909.

10 Qwuewtoz Gttozueqo a citizen of the United States, and of Glens Falls, in the county of Warren UNITED PATENT onion.

CHARLES E. DULIN, OF GLENS FA IiLS, NEW YORK. ASSIGNOR 0F ONE-HALF TO I. D.

I HOWLAND, OF SANDY HILL, NEW YORK.

ABMOR-TIRED WHEEL.

Patented Oct. 19, 1909.

To all whom it may concern:

Be it known that I, CHARLES E. DULIN, resident and State of New'York, have invented certain new and useful'lmprovements in Armor-Tired Wheels, ofwhich the following is a specification,

My invention relates to rubber tired wheels and more especially to that class of wheels known as clencher wheels, andconsists in forming the tire and providing the same with an armored or metallic tread, asfully set forth hereinafter and as illustrated in the accompanying drawing, in which:

1 Figure 1 is a cross sectional view at the lower part of the wheel showing the construction of the shoe and armored tread and its application to the clencher rim of a wheel; Fig. 2 is a cross sectional view of the wheel, showing the operation of the parts in use. I

The shoe A as shown corresponds generally with an ordinary clencher shoe adapted to the clencher rim B of the wheel. The said shoe however, instead of being normally circular in cross section, as usual, is so constructed that it will be elliptical in cross section with the ma'or axis of the ellipsis parallel to the axis 0 the wheel, as in Fig. 1.

.Atthe periphery of the shoe A-and integral therewith is a central annular flan e D, and to this flange are fitted two metallic rings C, C, which, as shown, have annular flanges 1, 2, the flanges 1 fitted to the curved face of the periphery of the shoe and the flan es 2 constituting the metallic tread of the shoe on opposite sides of the central flange D the edge of which is flush with the outer faces of the flanges 2. The rings C, C are secured together and to the flange D by means; of transverse bolts 3, and as thus applied the shoe and its rings constitute an armored shoe in which the metallic tread is practically rigid on opposite sides of a central yielding portion 10, the part on which 7 the wheel mainly rests, so-that while the advantages of a metallic tread are secured there isalsoseeuredtheadvantageofayieldingtread in preventing side slip, while the shoe with its usual contained inner tube (not shown) will secure the usual results of a pneumatic tire in reducing vertical vibrations.

Inasmuch as the normal form of the shoe in cross section is elliptical, any downward movement of the wheel with the periphery restin upon the ground will result in a latera elongation of the ellipsis of that portion of the shoe which is between the wheel and the ground, which elongation contracts the cross sectional area and tends to displace the air and force it toward the;

top. This'however results in a greater presj j sure upon the air throu hout the tire be' eause t e top portion is e ongated vertically throughout, tending to compress the air at this point inasmuch as the rings O, C are rigid and will not yield and there is a vertical separation of the rim and tread at the upper portion of the wheel which flattens this part of the shoe laterally.

While the shoe and its flange may be in one piece it may also be formed of two sections meeting on the',line as, Fig. l, which would facilitategnanufacture.

' Without limiting myself to the construction and arrangement shown I claim:

1. The combination with a flanged wheel rim, of a hollow shoe provided with a co- 0 eratin flan e ada ted to be secured to P g 7. P

the-rim, said s cc being substantially elliptic'al in cross section, with the major axis parallel with the axis of the wheel and provided with a peripheral flange, and a pair of'rilgid rings clamped on opposite sides of the ange and immovably secured to the flange and the shoe.

2. The combination with the flanged rim of a wheel, of a clencher'shoe adapted to said rim and with a central peripheral flange, the shoe and its flange in two sections, and two metallic rings fitted to 0pposite sides of said flange and secured thereto and to each other by cross bolts 3. The combination with a flanged wheel rim, of a hollow clencher shoe secured to the rim, said shoe being substantially ellip- In testimon whereof I afiix my signature in presence 0 two witnesses.

CHARLES E. DULIN.

tical in cross section, with the major axis parallel with the axis of the wheel and provided with a eripheral flange, and a pair of channel s aped rigid metallic rmgs 5 clamped on. the opposite sides of the flange Witnesses:

and 1mmovably secured to the flange and the STEPHEN A. HAYX, shoe. W. R. GOWLES. 

